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  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 第二次练习\n",
    "\n",
    "+ 请**务必**交到**exer2**文件夹下，谢绝交到master下\n",
    "+ 请**不要改动**任何文件，拜托\n",
    "+ 请在10月16日前提交。"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### 食物和热量\n",
    "\n",
    "已知，以下食物每100g的千卡路里如下：\n",
    "\n",
    "小米粥 45  \n",
    "粗粮馒头 223  \n",
    "全麦面包 235  \n",
    "瘦猪肉 143  \n",
    "鸡翅 194  \n",
    "培根 181  \n",
    "火腿肠 212 \n",
    "\n",
    "建立一个空的字典，把上述键值对依此添加进去。 \n",
    "通过循环形式，显示，如“我吃了二两”+“小米粥”，“增加了”+“45”千卡路里。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "calule={}\n",
    "calule['小米粥']=45\n",
    "calule['粗粮馒头']=223\n",
    "calule['全麦面包']=235\n",
    "calule['瘦猪肉']=143\n",
    "calule['鸡翅']=194\n",
    "calule['培根']=181\n",
    "calule['火腿肠']=212\n",
    "for name,cal in calule.items():\n",
    "    print(\"我吃了二两\"+name+\"，增加了\"+str(cal)+\"卡路里\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### 运动和消耗\n",
    "常见三种运动的消耗热量表：  \n",
    "慢走 (一小时4公里) 255 卡  \n",
    "慢跑 (一小时9公里) 655 卡  \n",
    "羽毛球（一小时） 440 卡  \n",
    "\n",
    "模仿课件3-dict_set中的cell[9]做个刷题，直到答对而且答完为止。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "\n",
      "慢走（一小时4公里）\n",
      "\n",
      "这种运动消耗多少卡路里?\n",
      "225  655  440  \n",
      "- 225\n",
      "You got it!\n",
      "\n",
      "慢跑 （一小时9公里）\n",
      "\n",
      "这种运动消耗多少卡路里?\n",
      "225  655  440  \n",
      "- 655\n",
      "You got it!\n",
      "\n",
      "羽毛球（一小时）\n",
      "\n",
      "这种运动消耗多少卡路里?\n",
      "225  655  440  \n",
      "- 440\n",
      "You got it!\n"
     ]
    }
   ],
   "source": [
    "python_words = {'225': '慢走（一小时4公里）',\n",
    "                '655': '慢跑 （一小时9公里）',\n",
    "                '440': '羽毛球（一小时）',\n",
    "                }\n",
    "\n",
    "def show_words(python_words):\n",
    "    # A simple function to show the words in the dictionary.\n",
    "    display_message = \"\"\n",
    "    for word in python_words.keys():\n",
    "        display_message += word + '  '\n",
    "    print(display_message)\n",
    "\n",
    "# Print each meaning, one at a time, and ask the user\n",
    "#  what word they think it is.\n",
    "for meaning in python_words.values():\n",
    "    print(\"\\n%s\" % meaning)\n",
    "\n",
    "    # Assume the guess is not correct; keep guessing until correct.\n",
    "    correct = False\n",
    "    while not correct:\n",
    "        \n",
    "        print(\"\\n这种运动消耗多少卡路里?\")\n",
    "        show_words(python_words)\n",
    "        guessed_word = input(\"- \")    \n",
    "        \n",
    "        # The guess is correct if the guessed word's meaning matches the current meaning.\n",
    "        if python_words[guessed_word] == meaning:\n",
    "            print(\"You got it!\")\n",
    "            correct = True\n",
    "        else:\n",
    "            print(\"Sorry,it is not right.\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Dictionary: A collection of key-value pairs.\n",
      "Function: A named set of instructions that defines a set of actions in Python.\n",
      "List: A collection of values that are not connected, but have an order.\n"
     ]
    }
   ],
   "source": [
    "# 对dict来说，输出时不按任何顺序\n",
    "# 可以通过sorted()函数使结果有序输出\n",
    "python_words = {'list': 'A collection of values that are not connected, but have an order.',\n",
    "                'dictionary': 'A collection of key-value pairs.',\n",
    "                'function': 'A named set of instructions that defines a set of actions in Python.',\n",
    "                }\n",
    "\n",
    "for word in sorted(python_words.keys()):\n",
    "    print(\"%s: %s\" % (word.title(), python_words[word]))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### 江西最高山\n",
    "\n",
    "[江西最高的十座山]{http://jx.ifeng.com/a/20160628/4693979_0.shtml}\n",
    "\n",
    "请模仿上例，创建包含山名和海拔的dict，并按如下形式循环输出：  \n",
    "“黄岗山海拔2157.8米”"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "九岭头海拔1794m\n",
      "五虎岗海拔1891m\n",
      "军峰山海拔1760.9m\n",
      "南风面海拔2120.4m\n",
      "武功山金顶海拔1918.3m\n",
      "独竖尖海拔2128m\n",
      "玉京峰海拔1819.9m\n",
      "过风坳海拔1887m\n",
      "黄岗山海拔2157.8m\n",
      "齐云山海拔2061.3m\n"
     ]
    }
   ],
   "source": [
    "mountains_high={'军峰山':'1760.9m','九岭头':'1794m','玉京峰':'1819.9m','过风坳':'1887m','五虎岗':'1891m',\n",
    "               '武功山金顶':'1918.3m','齐云山':'2061.3m','南风面':'2120.4m','独竖尖':'2128m','黄岗山':'2157.8m'}\n",
    "for mountain in sorted(mountains_high.keys()):\n",
    "    print(\"%s海拔%s\"%(mountain,mountains_high[mountain]))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### 为室友打一波广告\n",
    "请参照课件3-dict_set中的cell[15]“卖室友”吧。  \n",
    "第一层dict的key可自选，如身高、爱好、技能等等。\n",
    "并以以下形式循环输出：  \n",
    "我知道的XXX，TA:  \n",
    "身高：160  \n",
    "爱好：吸猫  \n",
    "技能：python  \n",
    "\n",
    "\n",
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "\n",
      "我知道Ace:\n",
      "身高: 170cm\n",
      "爱好: 篮球\n",
      "技能: 一口一个大苹果\n",
      "\n",
      "我知道Bob:\n",
      "身高: 175cm\n",
      "爱好: 数学\n",
      "技能: 这道题一看就知道了\n",
      "\n",
      "我知道Chen:\n",
      "身高: 177cm\n",
      "爱好: 物理\n",
      "技能: 你处在生与死的叠加态\n"
     ]
    }
   ],
   "source": [
    "roommates = {'ace': {'身高': '170cm', '爱好': '篮球', '技能':'一口一个大苹果'},\n",
    "        'bob': {'身高': '175cm', '爱好': '数学', '技能':'这道题一看就知道了'},\n",
    "        'chen': {'身高': '177cm', '爱好': '物理', '技能':'你处在生与死的叠加态'},\n",
    "        }\n",
    "\n",
    "\n",
    "for name,information in roommates.items():\n",
    "    print(\"\\n我知道%s:\" % name.title())\n",
    "    print(\"身高: \" + information['身高'])\n",
    "    print(\"爱好: \" + information['爱好'])\n",
    "    print(\"技能: \" + information['技能'])"
   ]
  }
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